Commonly, they are given as limit value ranges (normal or reference ranges), within which the measured values of around 95% of a representative population can be found. Normal values are defined as references for the evaluation of measured parameters (eg. A BUN level greater than 85 mg/dL with a normal creatinine level may indicate a loss of 2 or more units of blood into the GI tract. In patients with GI bleeding and no renal disease, a BUN level over 40 mg/dL with a normal creatinine level suggests significant GI blood loss. Women and children may have lower urea levels than men because of how their bodies break down protein. Drinking excessive amounts of liquid may cause overhydration and cause a low urea value. What does a low urea level mean?Ī low urea value may be caused by a diet very low in protein, malnutrition, or severe liver damage. 0.3 to 0.7 mg/dL for children younger than age 3. 0.5 to 1.0 mg/dL for children ages 3 to 18 years. What is a normal creatinine level for a child?Ġ.6 to 1.1 mg/dL for adult females.
What are normal urea and electrolyte levels? Unless this level is greater than 60 mg/dL, it may not help your healthcare provider measure your kidney health. The normal BUN level is between about 7 and 21 milligrams per deciliter (mg/dL). High BUN levels can also be caused by low blood flow to the kidneys caused by dehydration or heart failure. Kidney damage can be caused by diabetes or high blood pressure that directly affects the kidneys. What is abnormal level of urea?Ī high BUN value can mean kidney injury or disease is present. The estimated normal range of BUN was 14-23 mg/dl both in male and female elderly subjects, and that of Cr was 0.9-1.3 mg/dl in male and was 0.7-1.1 mg/dl in female. What is normal range of urea and creatinine? Urea nitrogen levels tend to increase with age. But normal ranges may vary, depending on the reference range used by the lab and your age. In general, around 6 to 24 mg/dL (2.1 to 8.5 mmol/L ) is considered normal.
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